<template>
  <div class="recommend">
    <scroll class="recommend-content" :data='discList' ref='scroll'>
      <div>
        <div class="slider-wrapper" v-if="recommend.length">
          <slider>
            <div v-for="item of recommend" :key="item.id">
              <a :href="item.linkUrl">
                <img @load='loadImg' :src="item.picUrl" alt="">
              </a>
            </div>
          </slider>
        </div>
        <div class="recommend-list" >   
            <h1 class="list-title">热门歌单推荐</h1>
            <ul>
              <li 
                v-for="(item,index) of discList" 
                :key="index" 
                class="item"
                @click="selectItem(item)"
              >
                <div class="icon">
                  <img v-lazy="item.imgurl" width="60" height="60" >
                </div>
                <div class='text'>
                  <h2 class="name">{{item.creator.name}}</h2>
                  <p class="desc" item.>{{item.dissname}}</p>
                </div>
              </li>
            </ul>       
        </div>
      </div>
      <loading v-if='!discList.length' class='loading-container'></loading>
    </scroll> 
    <router-view></router-view>
  </div>
</template>

<script type="text/ecmascript-6">
import {getRecommend,getDiscList} from 'api/recommend'
import {ERR_OK} from 'api/config'
import slider from 'base/slider/slider'
//列表上划
import scroll from 'base/scroll/scroll'
//懒加载
import loading from 'base/loading/loading'

import {mapMutations} from 'vuex'
  export default {
    data() {
      return {
        recommend:[],
        discList:[]
      }
    },
    components:{
      slider,
      scroll,
      loading
    },
    created() {
      this._getRecommend()
      this._getDiscList()
    },
    methods: {
        loadImg(){
          if(!this.checkLoaded){
            this.$refs.scroll.refresh()
            this.checkLoaded=true
          }
        },
        //歌单列表获取
        _getDiscList() {
        getDiscList().then((res) => {
            if(res.code === ERR_OK) {
                this.discList=(res.data.list)
            }
        })
      },
      //轮播图获取
      _getRecommend(){
        getRecommend().then(res=>{
            if(res.code===ERR_OK){
              this.recommend=res.data.slider
            }
        })
      },
      selectItem(item){
        this.$router.push({
          path:`/recommend/${item.dissid}`
        })
        this.setDisc(item)
      },
      ...mapMutations({
        setDisc: 'SET_DISC'
      })
    },
  }
</script>

<style scoped lang="stylus" rel="stylesheet/stylus">
  @import "~common/stylus/variable"

  .recommend
    position: fixed
    width: 100%
    top: 88px
    bottom: 0
    .recommend-content
      height: 100%
      overflow: hidden
      .slider-wrapper
        position: relative
        width: 100%
        overflow: hidden
      .recommend-list
        .list-title
          height: 65px
          line-height: 65px
          text-align: center
          font-size: $font-size-medium
          color: $color-theme
        .item
          display: flex
          box-sizing: border-box
          align-items: center
          padding: 0 20px 20px 20px
          .icon
            flex: 0 0 60px
            width: 60px
            padding-right: 20px
          .text
            display: flex
            flex-direction: column
            justify-content: center
            flex: 1
            line-height: 20px
            overflow: hidden
            font-size: $font-size-medium
            .name
              margin-bottom: 10px
              color: $color-text
            .desc
              color: $color-text-d
      .loading-container
        position: absolute
        width: 100%
        top: 50%
        transform: translateY(-50%)
</style>